溶接用連続冷却変態図に関する検討(第 2 報) : 各種高張力鋼の C. C. T. 図の訂正

概要

論文の詳細を見る
As one of the weldability tests of high tensile strength steel, the measurement of continuous cooling transformation diagram in welding has been widely adopted. Since we had a kind of doubt for the conventional method to make the C. C. T. diagram for welding which had been published by various national or private research institutes including us, we conducted systematic investigation about how to judge the microstructures and how to interpret the dilatation curves. And we have found a certain mistake in the conventional way to make the C. C. T. diagram. As a result of the previous experiment about 80Kg/(mm)^2 high tensile strength steel, we have found most of the structure which was thought as pre-eutectoid ferrite was bainite structures. And we have already reported that the C. C. T. diagram should be fairly revised as the results. As a continuation of the first report, new C. C. T. diagrams in welding of various high tension steels ranging from 50Kg/(mm)^2 to 100Kg/(mm)^2 level were mesured in this report. We sincerely hope that the revision of previous C. C. T. diagram which had been already published in our catalogue or others will attribute to the need of customers and further develop ment of high tensile strength steel in general.
社団法人溶接学会の論文
1966-02-25